EP2828932A1 - Raccordement électrique anti-rotation, en particulier destiné à un élément alvéolé pouvant être chauffé électriquement - Google Patents

Raccordement électrique anti-rotation, en particulier destiné à un élément alvéolé pouvant être chauffé électriquement

Info

Publication number
EP2828932A1
EP2828932A1 EP13709183.1A EP13709183A EP2828932A1 EP 2828932 A1 EP2828932 A1 EP 2828932A1 EP 13709183 A EP13709183 A EP 13709183A EP 2828932 A1 EP2828932 A1 EP 2828932A1
Authority
EP
European Patent Office
Prior art keywords
electrical conductor
electrical
electrical connection
connection
feed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP13709183.1A
Other languages
German (de)
English (en)
Other versions
EP2828932B1 (fr
Inventor
Peter Hirth
Thomas HÄRIG
Ferdi Kurth
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aumovio Germany GmbH
Original Assignee
Emitec Gesellschaft fuer Emissionstechnologie mbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Emitec Gesellschaft fuer Emissionstechnologie mbH filed Critical Emitec Gesellschaft fuer Emissionstechnologie mbH
Publication of EP2828932A1 publication Critical patent/EP2828932A1/fr
Application granted granted Critical
Publication of EP2828932B1 publication Critical patent/EP2828932B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/50—Catalysts, in general, characterised by their form or physical properties characterised by their shape or configuration
    • B01J35/56—Foraminous structures having flow-through passages or channels, e.g. grids or three-dimensional [3D] monoliths
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
    • F01N3/023—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles
    • F01N3/027—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles using electric or magnetic heating means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
    • F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion
    • F01N3/2006—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating
    • F01N3/2013—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating using electric or magnetic heating means
    • F01N3/2026—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating using electric or magnetic heating means directly electrifying the catalyst substrate, i.e. heating the electrically conductive catalyst substrate by joule effect
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/58—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R39/00—Rotary current collectors, distributors or interrupters
    • H01R39/60—Devices for interrupted current collection, e.g. commutating device, distributor, interrupter
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
    • H01R4/302—Clamped connections, spring connections utilising a screw or nut clamping member having means for preventing loosening of screw or nut, e.g. vibration-proof connection
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/02—Details
    • H05B3/06—Heater elements structurally combined with coupling elements or holders
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/40—Heating elements having the shape of rods or tubes
    • H05B3/42—Heating elements having the shape of rods or tubes non-flexible
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
    • H01R11/11—End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
    • H01R11/28—End pieces consisting of a ferrule or sleeve
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/016—Heaters using particular connecting means
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/022—Heaters specially adapted for heating gaseous material
    • H05B2203/024—Heaters using beehive flow through structures
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Definitions

  • the present invention relates to the field of electrical components in an exhaust system of an internal combustion engine, in particular of a motor vehicle.
  • Modern emission control systems often also contain electrical components whose leads must be electrically isolated from the outside into the exhaust system.
  • electrical components which require relatively high currents for example electrically heatable honeycomb bodies and the like, a relatively massive electrical connection is required so that sufficiently high currents can be passed through.
  • a typical electrically heatable honeycomb body is known from EP 0 783 621 B1.
  • Such a honeycomb body has at least one electrical connection, which has hitherto been substantially rotationally symmetrical.
  • WO 97/47057 also discloses the special design of such a connection with an electrical conductor and a leadthrough, from which the electrical conductor is electrically insulated by means of an insulating layer.
  • the electrical conductor has an outer connecting portion with a contact surface for connection to a connecting piece of a supply line, wherein in the case described, the connecting portion is slightly conical.
  • a rotationally symmetric arrangement in which an electrical conductor is typically surrounded by a ceramic insulating layer, in particular pressed ceramic powder, can be damaged or even loosened by torques acting on the electrical conductor.
  • the electrical conductor is electrically conductively connected to an electrical component in the interior of the exhaust system, in particular welded or soldered, wherein neither this connection point nor the electrical component can or should withstand large torques.
  • Object of the present invention is to provide a simple electrical connection, which avoids or reduces the problems described and in particular also allows to supply sensitive components that can not withstand large torques in the interior of an exhaust system with high electrical currents.
  • the variants according to the invention are based on the (same) idea that necessary torques can be exerted externally on the electrical connection during assembly, disassembly and operation, without damaging the bushing or the electrical component in the interior.
  • the object is achieved by an electrical connection for an electrical component in an exhaust system of an internal combustion engine, in particular an electrically heatable honeycomb body, wherein the exhaust system has a metallic shell through which an electrical conductor electrically insulated by an insulating layer by means of a passage having a geometric center axis, and wherein the electrical conductor has a circular cross-section, outer connecting portion having a Maisfizze for connection to a connecting piece of a feed line and / or coaxial with the central axis of the implementation of internal or external thread.
  • the implementation in this case designed so that they can on the connecting portion and / or the inner or outer thread in the circumferential direction attacking torques of up to 8 Nm (Newton meters), preferably up to 10 Nm, in particular up to 15 Nm record.
  • an electrical connection for an electrical component in an exhaust system of an internal combustion engine in particular an electrically heatable honeycomb body
  • the exhaust system has a metallic shell through which an electrical conductor is passed through an insulating electrically insulated by means of a passage and wherein the electrical conductor has a circular in cross-section outer connecting portion having a contact surface for connection to a connection piece of a supply line, wherein the passage is designed so that they at the connecting portion and / or the inner or outer thread in the circumferential direction of the acting torques of up to 3.6 Nm (Newton meters) per cm 2 (square centimeter) contact surface preferably of up to 4.5 Nm / cm 2 , in particular up to 7 Nm / cm 2 record.
  • Nm Newton meters
  • the leadthrough or the electrical conductor in particular in the region of the leadthrough, is designed such that higher torques than hitherto typically admitted can be accommodated. Damage to the implementation or the electrical component can be prevented even when using larger torques.
  • a suitable solution according to the invention is that the electrical conductor in the region of the bushing has an outer cross-section deviating from the circular shape, in particular an oval or polygonal cross-sectional shape.
  • the electrical conductor in the region of the bushing has an outer cross-section deviating from the circular shape, in particular an oval or polygonal cross-sectional shape.
  • much higher forces are required for a twist, because at least a portion of the insulating layer would have to be taken during rotation.
  • Even a deviating from the circular outer cross-section of the electrical conductor without any other changes to the implementation achieved a significant effect. This is of course reinforced, although the implementation itself has a corresponding internal deviating from the circular shape cross-sectional shape.
  • Another embodiment which allows the recording of significant torques, is the design of the electrical conductor independent of its general cross-sectional shape with an externally mounted structure, in particular a running in its longitudinal and / or oblique structure, in particular grooves, grooves, ribs and / or surveys.
  • an externally mounted structure in particular a running in its longitudinal and / or oblique structure, in particular grooves, grooves, ribs and / or surveys.
  • Particularly preferred embodiments are those in which the bushing in its shape and / or inner surface structure serves as a counterpart to the corresponding region of the electrical conductor and is electrically insulated from it by a ceramic insulating layer, in particular pressed ceramic powder.
  • a kind of positive locking transmitted by the pressed ceramic powder is produced, which virtually excludes twisting even with high torque.
  • the electrical conductor can have at least one longitudinally interacting structure with the feedthrough in accordance with the principle of tongue and groove.
  • the electrical conductor in addition to the properties described so far must also be guided gas-tight to the outside.
  • the gas-tightness can be improved by virtue of the fact that the electrical conductor in the region of the lead-through has at least one structure extending in the circumferential direction, which preferably interacts with a corresponding counter-structure of the lead-through.
  • This design not only leads to a kind of labyrinth seal, but also increases the friction surfaces between the electrical conductor and insulating layer, whereby at the same time the male torque is increased.
  • One or more successive such structures therefore simultaneously increase the gas-tightness of the bushing and the security against rotation.
  • the electrical conductor above the conical connecting portion may have an external thread on which a nut for tightening the connector can be rotated.
  • the invention enables the application of larger torques and thus larger surface pressures with the same conicity of the connecting portion over conventional systems and above all allows disassembly even with oxidized thread or connecting portion, without the electrical component is damaged.
  • the electrical conductor has an internal thread on which a screw with a head for tightening the connector can be rotated.
  • a counter-holding means can be provided on the electrical conductor (above the bushing), which means that the electrical conductor can be twisted in the bushing by holding it with a suitable tool (applying a counter-torque) helps prevent.
  • a suitable tool applying a counter-torque
  • it can be a polygonal, preferably hexagonal, section of the electrical conductor, on which a wrench or a similar tool can act to counteract.
  • Counteracting means the application of a torque acting on the electrical conductor counteracting second torque.
  • the invention finds particular application in a motor vehicle having an internal combustion engine and an electrically heatable honeycomb body integrated in the exhaust system.
  • FIG. 1 shows a schematic representation of an exhaust system of an internal combustion engine with an electrical component and an electrical connection before assembly
  • FIG. 2 shows a first embodiment of the invention with non-circular cross-section of electrical conductor and implementation
  • FIG. 3 shows a second embodiment of the invention with hexagonal cross-section of electrical conductor and implementation
  • FIG. 4 shows a further exemplary embodiment of the invention with an electrical conductor and feedthrough cooperating according to the principle of tongue and groove
  • FIG. 5 shows a further embodiment of the invention with external structure on the electrical conductor in the region of the feedthrough
  • FIG. 6 shows an embodiment of a bushing with a circumferential structure
  • FIG. 7 shows an embodiment of an electrical conductor with a circumferential structure suitable for the bushing according to FIG. 6,
  • FIG. 6 shows an embodiment of a bushing with a circumferential structure
  • FIG. 7 shows an embodiment of an electrical conductor with a circumferential structure suitable for the bushing according to FIG. 6,
  • FIG. 6 shows an embodiment of a bushing with a circumferential structure
  • FIG 10 is a schematic external view of a portion of a bushing according to FIG. 8 and FIG 11 shows a schematic view of an electrical connection with additional counter-holding means.
  • the electrical component 1 shows an electrical connection 1 before installation in a jacket 3 of an exhaust system 10 of an internal combustion engine 11 and before connection to an electrical component 2 to be arranged in the jacket 3.
  • the electrical component 2 is preferably an electrically heatable honeycomb body 12, which according to FIG Installation via an electrical conductor 4 to be supplied with electricity.
  • the electrical conductor 4 is guided through the jacket 3 through a bushing 5, from which it is electrically insulated by means of an insulating layer 6. Inside, the electrical conductor 4 is connected to the electrical component 2. Externally, it has a connecting portion 7 which has a contact surface 8 and in this region (transverse to the longitudinal direction 19) has a circular cross-section 18.
  • the connecting portion 7 may preferably be slightly conically shaped so that a connecting piece 14 with a corresponding conical opening can be pushed onto the connecting portion 7 in a self-locking manner.
  • the contact forces in the region of the contact surface 8 can be increased and adjusted by tightening a nut 16 on an external thread 9 or by tightening a screw, not shown in an internal thread, not shown in the electrical conductor 4.
  • a supply line 15 safely be connected to the electrical conductor 4, so that the electrical connection 1 currents of 30 and more amperes, up to several hundred amps, record.
  • the electrical connection 1 While according to the prior art, such an electrical connection was generally rotationally symmetrical about a geometric center axis 13, the electrical connection 1 according to the invention has means 82 for increasing the capacity of the bushing 5 Torque on. Individual embodiments for such anti-rotation are shown by way of example in the following figures.
  • FIG. 3 shows an electrical conductor 4 with a hexagonal outer cross section 31 in the region of the passage 5, wherein the passage 5 has a correspondingly arranged hexagonal inner cross section 32. Between both an insulating layer 6 is in turn arranged.
  • This figure is exemplary of any type of polygonal cross-sections 18, all of which increase the security against twisting.
  • FIG. 4 illustrates the interaction of a spring 41 on the electrical conductor 4 with a groove 42 on the inside of the bushing 5.
  • a spring 41 on the electrical conductor 4 with a groove 42 on the inside of the bushing 5.
  • One or more in the longitudinal direction of the electrical conductor 4 extending anti-rotation in the form of cooperating groove 42 and spring 41 also increase from the implementation 5 recordable torques.
  • FIG. 5 shows longitudinally cut-through passage 5 schematically the electrical conductor 4 with its external properties.
  • the area of the electrical conductor 4 is provided within the passage 5 with structures 51, in the present case with intersecting inclined ribs.
  • This structure 51 causes a significantly increased static friction between electrical Head 4 and insulating layer 6, which means increased security against rotation.
  • Fig. 5 also shows the conical connecting portion which provides the contact surface 8. At the end of the electrical conductor 4, an external thread 9 is indicated.
  • FIG. 6 shows a passage, in the present case with an approximately rectangular cross-section 18 with an at least internally encircling hollow structure 62, which is visible in the present case but also outside.
  • FIG. 7 a correspondingly shaped electrical conductor 4 for the illustrated in Fig. 6 form of the implementation 5 is shown.
  • This electrical conductor 4 has an outer circumferential curvature 71, which can cooperate with the inner circumferential hollow structure 62.
  • the interaction of externally encircling curvature 71 and inner circumferential hollow structure 62 would cause additional rotation by increasing the friction with the insulating layer 6 even with round cross-sectional shapes.
  • FIG. 8 shows a schematic longitudinal section through such a configuration
  • FIG. 9 shows a schematic cross-section along the line IX-IX through FIG. 8 and FIG.
  • FIG 10 shows an outside view of the passage 5 in the region of indentations 82.
  • FIG a further inventive solution for preventing the twisting of the electrical conductor 4 and / or the insulation 6 in the implementation 5.
  • Such a counter-holding means 17 may preferably have larger dimensions in diameter than the electrical conductor and form a kind of collar with a necessary distance for the electrical insulation of the bushing 5. This supports during operation, the heat dissipation from the electrical conductor and thus also reduces the temperature of the contact surface 8 in the connecting portion. 7
  • the present invention renders electrical connections for electrical components in an exhaust system less susceptible to externally applied torques, which simplifies installation, maintenance, and repair.
  • it is possible to provide even sensitive electrical components in an exhaust system with an electrical connection or to make electrical components less resistant to transmitted from outside to inside torques. This increases the design possibilities for low-cost electrical components, in particular electrically heatable honeycomb body in exhaust gas purification systems. LIST OF REFERENCE NUMBERS

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Resistance Heating (AREA)
  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
  • Connector Housings Or Holding Contact Members (AREA)

Abstract

La présente invention concerne un raccordement électrique (1) destiné à un composant électrique (2) d'un système d'échappement (10) d'un moteur à combustion interne (11), en particulier un élément alvéolé (12) qui peut être chauffé électriquement. Le système d'échappement (10) comporte une enveloppe métallique (3) à travers laquelle un conducteur électrique (4) électriquement isolé par une couche isolante (6) passe au moyen d'une traversée (5). Le conducteur électrique (4) présente un segment de liaison extérieur (7) de section circulaire et comportant une surface de contact (8) destinée à être reliée à une pièce de raccordement (14) d'un câble d'alimentation (15). Selon l'invention, la traversée (5) et/ou le conducteur électrique (4) sont configurés dans la zone de la traversée (5) de façon à pouvoir supporter au niveau du segment de liaison (7) et/ou du filetage intérieur ou extérieur (9) des couples agissant dans le sens de sa circonférence allant jusqu'à 3,6 Nm (newton mètre) par cm2 (centimètre carré) de la surface de contact (8), de préférence jusqu'à 4,5 Nm/cm2 et en particulier jusqu'à 7 Nm/cm2. Ceci est obtenu notamment en donnant au conducteur électrique (4) une forme adéquate dans la zone de la traversée (5), en particulier grâce à des structures et/ou à des modifications de la forme de section. De manière particulièrement avantageuse, le conducteur électrique (4) et la traversée (5) présentent un complémentarité de forme. Ceci permet d'éviter les détériorations, y compris des composants électriques (2) sensibles du système d'échappement (10), dues aux couples importants appliqués de l'extérieur. Ceci évite également des détériorations lors du démontage et de la maintenance.
EP13709183.1A 2012-03-21 2013-03-11 Raccordement électrique anti-rotation, en particulier destiné à un élément alvéolé pouvant être chauffé électriquement Active EP2828932B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012005786A DE102012005786A1 (de) 2012-03-21 2012-03-21 Verdrehsicherer elektrischer Anschluss, insbesondere für einen elektrisch beheizbaren Wabenkörper
PCT/EP2013/054806 WO2013139633A1 (fr) 2012-03-21 2013-03-11 Raccordement électrique anti-rotation, en particulier destiné à un élément alvéolé pouvant être chauffé électriquement

Publications (2)

Publication Number Publication Date
EP2828932A1 true EP2828932A1 (fr) 2015-01-28
EP2828932B1 EP2828932B1 (fr) 2017-05-10

Family

ID=47882140

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13709183.1A Active EP2828932B1 (fr) 2012-03-21 2013-03-11 Raccordement électrique anti-rotation, en particulier destiné à un élément alvéolé pouvant être chauffé électriquement

Country Status (9)

Country Link
US (1) US9225107B2 (fr)
EP (1) EP2828932B1 (fr)
JP (1) JP6219917B2 (fr)
KR (1) KR20140129298A (fr)
CN (1) CN104205504B (fr)
DE (1) DE102012005786A1 (fr)
IN (1) IN2014DN08169A (fr)
RU (1) RU2606954C2 (fr)
WO (1) WO2013139633A1 (fr)

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* Cited by examiner, † Cited by third party
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DE102015212705A1 (de) * 2015-07-07 2017-01-12 Continental Automotive Gmbh Lagenpaketkontaktierung für elektrisch beheizbare Wabenkörper
DE102016209282B4 (de) * 2016-05-30 2023-01-12 Vitesco Technologies GmbH Elektrischer Anschluss, insbesondere für einen elektrisch beheizbaren Wabenkörper
DE102018217244A1 (de) 2018-10-09 2020-04-09 Continental Automotive Gmbh Elektrisch beheizbare Heizscheibe
CN110206622B (zh) * 2019-06-04 2021-07-27 亿达天地环保技术股份有限公司 双层套管结构电加热废气处理装置
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US9225107B2 (en) 2015-12-29
IN2014DN08169A (fr) 2015-05-01
JP2015518101A (ja) 2015-06-25
RU2014142092A (ru) 2016-05-10
EP2828932B1 (fr) 2017-05-10
WO2013139633A1 (fr) 2013-09-26
US20150011115A1 (en) 2015-01-08
RU2606954C2 (ru) 2017-01-10
CN104205504B (zh) 2017-07-28
KR20140129298A (ko) 2014-11-06
JP6219917B2 (ja) 2017-10-25
CN104205504A (zh) 2014-12-10

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